package edu.guet.cn.blogbasics.config;

import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;

/**
 * @Auther: hejianding
 * @Date: 2021/4/7 15:18
 * @Version: 1.0
 */

    /**
     * Druid的连接池配置
     * 地址为http://127.0.0.1:9000/druid/login.html
     */
@Configuration
@PropertySource(value = "classpath:application.yml")
public class DruidConfig {
        /**
         * 配置数据域
         * @return javax.sql.dataSource
         */
    @Bean(destroyMethod = "close", initMethod = "init")
    @ConfigurationProperties(prefix = "spring.datasource")
    public DruidDataSource druidDataSource() {
        DruidDataSource druidDataSource = new DruidDataSource();
        return druidDataSource;
    }

        /**
         * 注册一个StatViewServlet
         * @return  org.springframework.boot.web.servlet.ServletRegistrationBean
         */
    @Bean
    public ServletRegistrationBean druidStatViewServlet(){
            //通过ServletRegistrationBean类进行注册.
            ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(),"/druid/*");

            //添加初始化参数：initParams
            //白名单：
            servletRegistrationBean.addInitParameter("allow","127.0.0.1");
            //IP黑名单 (存在共同时，deny优先于allow) : 如果满足deny的话提示:Sorry, you are not permitted to view this page.
            //servletRegistrationBean.addInitParameter("deny","192.168.1.73");
            //登录查看信息的账号密码.
            servletRegistrationBean.addInitParameter("loginUsername","admin");
            servletRegistrationBean.addInitParameter("loginPassword","123456");
            //是否能够重置数据.
            servletRegistrationBean.addInitParameter("resetEnable","false");
            return servletRegistrationBean;
    }
        /**
         * description: druid过滤器，注册一个filterRegistrationBean
         *
         * @param
         * @return org.springframework.boot.web.servlet.FilterRegistrationBean
         */
        @Bean
    public FilterRegistrationBean druidStatFilter(){
            FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());
            //添加过滤规则.
            filterRegistrationBean.addUrlPatterns("/*");
            //添加不需要忽略的格式信息.
            filterRegistrationBean.addInitParameter("exclusions","*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
            return filterRegistrationBean;
    }

}
